Phase Lag (4)

Question 1

What is Phase Lag?

Answer 1

The lag in signal response time between the LO and the change in material.

Question 2

What is the phase lag angle at 1 standard depth of penetration?

Answer 2

signal shift of 1 radian or 57°.

increasing by 57° at each standard depth:

Question 3

What symbol represents Phase Lag?

Answer 3

Beta β

Question 4

what is phase lag at 2 standard depths?

Answer 4

2 radians or 114°

Question 5

Phase Lag formula

Answer 5

β = X / δx57

β = phase lag (°)
X = material depth (mm)
δ = standard depth of penetration